Question

Suatu fungsi F(x)= 3x-4 jika Domain x={9,10,11,12} tentukan range dan grafik fungsinya ​

Answer 1

Verified answer

linear fungsi

f(x) = y = 3x - 4

domain fungsi = {9, 10, 11, 12}

f(9) = 3.9 - 4 = 27 - 4 = 23

f(10) = 3.10 - 4 = 30 - 4 = 26

f(11) = 3.11 - 4 = 33 - 4 = 29

f(12) = 3.12 - 4 = 36 - 4 = 32

range fungsi, Rf = {23, 26, 29, 32}

grafik

x = 0 → y = 3.0 - 4 = -4

y = 0 → x = (0 + 4)/3 = 4/3

titik potong

• sumbu x → A(4/3 , 0)

• sumbu y → B(0,-4)